Original reader

1. An original reader comprising: a light source for irradiating an original reading position; an illuminant for converting ultraviolet rays directly radiated outside from an opening of the light source into visible light; and a reflecting plate for reflecting light emitted from the light source and guiding the light to the original reading position, wherein said light source and said reflecting plate are disposed in approximately symmetrical positions sandwiching a vertical surface orthogonal to a moving direction of said light source and including said original reading position, and said illuminant is disposed in a side opposite to the original reading position such that said illuminant and said original reading position sandwich the light source.

2. The original reader according to claim 1 , wherein another illuminant different from the illuminant placed oppositely to the original reading position is provided on a surface opposite to an original in an outer surface of a tube wall of the light source, both illuminants sandwiching the light source.

3. An original reader comprising: a light source for irradiating an original reading position; an illuminant for converting ultraviolet rays directly radiated outside from an opening of said light source into visible light; and a reflecting plate for reflecting light emitted from said light source and guiding the light to the original reading position, wherein said light source and said reflecting plate are disposed in approximately symmetrical positions sandwiching a vertical surface orthogonal to a moving direction of said light source and including said original reading position, and said illuminant is made of a light-transmissive material and provided on a backside of a glass plate on which an original is placed.

4. An original reader comprising: a case movable along an original and comprising a cover glass on a surface opposite to said original; and a scanner module housed in said case, wherein said scanner module comprises: a light source for irradiating an original reading position through said cover glass; illuminants for converting ultraviolet rays directly radiated outside from an opening of said light source into visible light; a reflecting plate for reflecting light emitted from said light source and guiding the light to the original reading position; a line sensor for reading said original; a mirror for guiding light reflected by said original to said line sensor through an imaging lens, said light source and said reflecting plate are disposed in approximately symmetrical positions sandwiching a vertical surface orthogonal to a moving direction of said light source and including said original reading position, and said illuminants are made of a light-transmissive material and provided on a backside of said cover glass in approximately symmetrical positions sandwiching said vertical surface.